Loose-leaf binder



Aug. 28, 1923. 46,313

J. SCI-JADE LOOSE LEAF BINDER Filed April 7', 1921 'Exml Patented Aug. 28, 1923.

entrees CIATION.

rat"

meters,

tries;

' LOOSE-LEAF einnnn.

Application filed l'ipril 7, 1921 Serial 1T0. 459,3 63

l ocllwiiom ita /my concern:

Be it known that 1, JOHN Scriabin, a citi- Zen of the United States, residingat the city of Holyolie, county ofllampdenand State of Massachusetts, have invented certain new and useful Improvements in Loose-Leaf Binders; and I doderlare the following to be a full, clear, and exact de-, scription of the invention, suclras will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in loose leaf binders and pertains more especially to the securement of the metal prong carrying member to the back part of the cover structure.

These cover structures are made automatically in what is termed a case-making machine wherein three pieces of suitable material comprising the two side covers and the back strip are automatically fed into a machine .over a glue-coated sheet of cloth, and by means of mechanically operated side wipers the edges are turned over the material. As heretofore practiced, a metal strip is then glued by hand to this back portion and is covered with a strip of black cloth glued thereto. This necessitates hand labor, and the primary object of this present invention is to dispense with this hand labor by utilizing a back strip that carries fastening devices that are primarily so disposed that the strip may be passed through said machine, such fastening devices bein subsequently secured to the metal cover plate that carries the loose leaf prong members or rings.

This back strip may be made of metal or any other suitable material, but it is preferred to employ a pasteboard' strip equipped with metal clips, the latter disposed flush with the strip enabling the latter to be fed through the machine together with the side boards of the cover, over the usual glue-coated cloth, following which this pastr-board strip is shaped between hot dies, the facing or lining stripthen applied thereover and finally the ends of the clips raised and clinched into engagement with the usual prong-carrying member.

preferably formed with openin .In the drawings: I v Figure 1 is a fragmentary plan view of a blnder constructed in accordance with the present invention-1; I FigureQ is an enlarged section on line 2-2 of Figure 1;

ASSIGNOB so NATIONAL BLANK a "VOLUNTARY TRUST asso- 1 Figure 3 isa detail planview of thepaste; I

board back strip; v

Figure 4e is an enlarged section on line t i ofFigure 3 5ml 7' ljigure 5-is a fragmentary plan of a metal strip such as may be used instead of the pasteboard strip. 2 ,7 In proceeding in accordance with the present invention, a strip 1, preferably made of pasteboard, is employed, to the ends of which metal clips are attached, the clips being of son'iewhat G-shape and having their bodies 2 and their ends or clinching points 3, mbedded in the body of the strip so as to lie flush with the side "aces thereof as depi rted in' Figure '41, of the drawings, to.

allow of unobstriiictedfeeding through'the machine. The pasteloeard strip 1', is further.

4- within "Which, the free ends of the points 3 lie, the purpose of which is to allow of the insertion of an instrument so as to raise the points upwardly at the proper stage of the manufacture'of the binder, as will be now described. through the ease-making machine together with the pastebeard side boards B of the covers, over the usual glue-coated cloth A and then this back strip 1, is molded or curved between hot dies. Afstrip of glue coated cloth C is then secured'over the face of the strip 1, the spur or clinching ends or points 3 of the clips being raised before the application of this glued cloth C, which late teris punched with slits through which the The pasteboard strip 1 is fed spurs pass, or; asshown, this cloth lining latter has become glued to the pastelooard 1.

1t isimmaterial which of these two methods 1S followed, that is to say, whether the spurs,

are raised before the application of the cloth ,C, and passed through slits therein or Whether the cloth is glued directly to the strip 7 and provided with openings which, register with the spurs so that the latter. can be rais'ed afterwards. The metal member D having the usual prongs E for the acconimodation of loose leaves, is nextapplied'and is 5 provided with notches 7, through which thespurs are passed and then bent over and firmly anchored to thus hold the member D securely in position. 7

The prong-bearing member may also'be and in the art is sometimes denominated a metal cover, and consequently the two terms may be and are interchangeably used but not ina limiting sense. 1 V The back strip 8, shownrat Figure 5, is made of thin metal and has spurs 9 lanced therefrom so as. to provide openings 10 which spurs are normally in the plane of the body of the strip, so thatthe latter may be passed through the casemaking machine and these spurs are lifted and secured to the cover plate D in the manner, heretofore described With respect to the spurs 3. This strip 8 is curved between suitable dies in case abook With a rounded back is desired,

the pasteboard strip.

or it may remain flat if the book is to have a flat back, and this 1s truewith respect to What is claimed is: 1 l. in a loose leaf binder, a fabric cover member, a fiber strlp attached thereto, a

prong-bearing member overlyin the strip,

and a pair of clips secured to the strip and having spurs bent flush With thelatter but adapted to be raised, the striphaving openings arranged opposite the ends of the spurs and adapted to permit of the spurs being engaged to raise them into operative position and into clinching engagement with the prong-bearing member.

2. In a loose leaf binder,a fabric cover member, a fiber strip ha ving flush clips With spurs and having openings opposite the ends of the spurs, sothat the latter may be subsequently raised from their flush position, a lining glued over the strip and clips and having, openings immediately above the strip openings to receive the spurs, and a metal cover having clinching engagement ivith the spurs. v V

In testimony whereof I allix my signature hereto. 7

JOHN SCHADE. 

